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Ulmus japonica - (Sarg. ex Rehder.)Sarg.

Common Name Japanese Elm
Family Ulmaceae
USDA hardiness 4-8
Known Hazards None known
Habitats Slopes, waterlands near stream and in valleys below 2000 - 2300 metres[266].
Range E. Asia - China, Japan, Korea.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Fully Hardy Moist Soil Semi-shade Full sun
Ulmus japonica Japanese Elm


Ulmus japonica Japanese Elm

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Summary


Physical Characteristics

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Ulmus japonica is a deciduous Tree growing to 35 m (114ft 10in).
It is hardy to zone (UK) 5 and is not frost tender. It is in flower from Mar to May, and the seeds ripen from Apr to May. The species is hermaphrodite (has both male and female organs) and are pollinated by Wind. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Synonyms

U. propinqua. Koidz.

Habitats

Woodland Garden Canopy;

Edible Uses

Edible Parts: Fruit;  Inner bark;  Leaves.
Edible Uses:

Leaves - raw or cooked[105, 177]. Young fruits - cooked[105, 177]. The fruit is about 15mm long and 10mm wide[200]. Inner bark - cooked. It is usually dried, ground into a powder and then used as a thickening in soups or added to cereal flours when making bread etc[105, 177].

Medicinal Uses



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Diuretic;  Nervine;  Purgative.

The bark is diuretic, nervine and purgative[218].

Other Uses

Fibre;  Wood.

A fibre is obtained from the inner bark[189]. The bark is soaked for 7 - 10 days in water, the inner and outer barks are then separated and the inner bark is stripped into strands and made into thread by chewing it. It is made into a coarse fabric[189]. Wood - heavy, difficult to work. Used for axles, hubs etc[46, 61].

Cultivation details

Prefers a fertile soil in full sun[188], but is easily grown in any soil of at least moderate quality so long as it is well drained[1]. This species is resistant to 'Dutch elm disease', a disease that has destroyed the greater part of all the elm trees growing in Britain. The disease is spread by means of beetles. There is no effective cure (1992) for the problem, but most E. Asian, though not Himalayan, species are resistant (though not immune) to the disease so the potential exists to use these resistant species to develop new resistant hybrids with the native species[200]. The various species of this genus hybridize freely with each other and pollen is easily saved, so even those species with different flowering times can be hybridized[200]. Closely related to U. davidiana[200], and considered to be no more than a subspecies of that species by some botanists[266].

Propagation

Seed - if sown in a cold frame as soon as it is ripe, it usually germinates within a few days[200]. Stored seed does not germinate so well and should be sown in early spring[200]. The seed can also be harvested 'green' (when it has fully developed but before it dries on the tree) and sown immediately in a cold frame. It should germinate very quickly and will produce a larger plant by the end of the growing season[80]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Plants should not be allowed to grow for more than two years in a nursery bed since they form a tap root and will then move badly. Layering of suckers or coppiced shoots[200].

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Ulmus alataWinged Elm20
Ulmus americanaAmerican Elm, Gray Elm, Water Elm22
Ulmus davidianaJapanese Elm20
Ulmus glabraWych Elm, Table-top Scotch Elm, Scotch Elm32
Ulmus laciniata 20
Ulmus macrocarpa 21
Ulmus parvifoliaChinese Elm, Lacebark Elm21
Ulmus proceraEnglish Elm32
Ulmus pumilaSiberian Elm, Hybrid elm22
Ulmus rubraSlippery Elm25
Ulmus thomasiiRock Elm10
Ulmus villosaCherry Bark Elm10
Ulmus wallichiana 11

 

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Expert comment

Author

(Sarg. ex Rehder.)Sarg.

Botanical References

11200266

Links / References

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Subject : Ulmus japonica  
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